Weather records are being broken all over the country with the average Australian temperature being upgraded to 40.33C on Monday.
By 3pm yesterday, Leonora was experiencing temperatures of 46.6C and by 4pm yesterday in Kalgoorlie-Boulder it was 44.2C with a maximum of 45.3C reached half an hour earlier.
Two people had been admitted at the Kalgoorlie Hospital in the past two days for heat-related illnesses.
The Department of Health advises people to drink plenty of fluid and a find cool place to shelter from the heat.
Signs a person may be experiencing a heat-related illness include an increased heart rate, nausea and vomiting and dizziness or fainting.
According to the Australian Bureau of Meteorology, interim special climate statement, the past four months in Australia have been “abnormally hot” with the current heatwave building up in south-west WA.